The report aims to widen and sharpen the focus on the complex causes of forced migration and the diverse consequences and impacts for both affected populations and humanitarian actors. It shows that the complex nature of disasters and conflicts is accompanied by the enormous potential to uproot large numbers of people. Other factors, such as population growth, rapid urbanisation, increasing poverty and inequality, hazardous and environmentally contaminated sites, climate change and new technological hazards all combine to accentuate vulnerability and increase the propensity for forced displacement to occur.